Who's For Filibusters?
A filibuster is a political strategy in which a US senator threatens to speak for hours on end to try and delay efforts to vote for a bill.
The filibuster is a powerful legislative device in the United States Senate. Senate rules permit a senator or senators to speak for as long as they wish and on any topic they choose, unless "three-fifths of the Senators duly chosen and sworn" usually 60 out of 100 senators vote to bring debate to a close by invoking cloture under Senate Rule XXII.